Formulation Method and Management Principle for the Safety Base-line of Atmospheric Environmental Quality

The formulation of the safety base-line for atmospheric environmental quality is not only basic needs of mankind maintaining the quality of survival environment but also concrete measures of red line system for national ecological protection. It is urgent to solve the problem in current environmental management how to draft the safety basa-line of atmospheric environmental quality. To solve this problem, the connotation of safety base-line for atmospheric environmental quality is defined firstly, and then the indexes for atmospheric importance, sensitivity and vulnerability are generalized. Moreover, formulation methods for red, yellow and green lines of the safety base-line for atmospheric environmental quality are put forward ,and corresponding division principle and management principle are put forward finally.

Atmospheric Environmental Quality Assessment RBF Model Based on the MATLAB

A new method-RBF model is found to assess the atmospheric quality by use of the PREMNMX function in MATLAB to pretreat the original data and the RAND function to construct enough training samples, checking samples and outputs of their targets through linear interpolation between grades of the atmospheric quality evaluation standard. A favorable assessment result is achieved by applying this method to assess atmospheric environmental quality in a city, which shows this new method is meaningful in improving the precision and scientificity of atmospheric environmental quality assessment.

Atmospheric Environmental Capacity of S_2 in Winter over Lanzhou in China:A Case Study

The total emission control method based on atmospheric environmental capacity is the most effective in air pollution mitigation. The atmospheric environmental capacities of SO2 on representative days over Lanzhou are estimated using the numerical models RAMS, HYPACT and a linear programming model, according to the national ambient air quality standard of China （NAAQSCHN）. The results show that the fields of meteorological elements and SO2 simulated by the models agree reasonably well with observations. The atmospheric environmental capacity of SO2 over Lanzhou is around 111.7 × 10^3 kg d^-1, and in order to meet the air quality level Ⅱ of the NAAQSCHN, SO2 emissions need to be reduced by 20%.

Research on Decision Support System (DSS) of Atmospheric Environment Management in Anhui Province Based on Air Quality Forecasting

With the atmospheric stereoscopic monitoring, air quality forecasting and decision of environment management as the main line, and comprehensive management system as the guidance, five platforms including infrastructure, technological support, monitoring and early monitoring, decision support and information services were established. These platforms have 15 subsystems, including stereoscopic monitoring network, visual business consultation, high-performance computing environment, comprehensive management of atmospheric data, emission inventories of pollu-tion sources, evaluation tools of atmospheric models, monitoring and management of air pollution, forecasting and early warning of air quality, diag-nostic analysis of atmospheric environment, tracking of air pollution sources, emergency management of air pollution, conformity management of air quality, comprehensive display of information, releasing of information to external networks, and releasing of information by mobile networks. The decision support system （DSS） of atmospheric environment management could realize an integration business system of 11 air quality forecast - heavy pollution weather warning - diagnosis of pollution causes （dynamic analysis of pollution sources） -air quality conformity planning （air pollu-tion emergency management） -evaluation of forecasting and warning results （evaluation pf management measures） -air quality forecasting＂ and provide the technical support for the prevention and control of atmosphere pollution in Anhui province.

STUDY OF THE VERTICAL WIND FIELD STRUCTURE AND ITS RELATIONSHIP WITH PM2.5 AIR POLLUTION OVER THE PEARL RIVER DELTA IN AUTUMN

Meteorological conditions,particularly the vertical wind field structure,have a direct influence on the PM2.5 concentrations over the Pearl River Delta(PRD).In October 2012,an exceptional air pollution event occurred in the PRD,and a high concentration of PM2.5 was registered at some stations.During days with PM2.5 air pollution,the wind speed was less than 3 m s-1 at the surface,and the vertical wind field featured a weak wind layer(WWL)with a thickness of approximately 1000 m.The mean atmospheric boundary layer height was less than 500 m during pollution days,but it was greater than 1400 m during non-pollution days.A strong negative correlation was detected between the PM2.5 concentration and the ventilation index(VI).The VI was less than 2000 m2 s-1 during PM2.5 air pollution days.Because of the weak wind,sea-land breezes occurred frequently,the recirculation factor(RF)values were small at a height of 800 m during pollution days,and the zones with the lowest RF values always occurred between the heights of 300 and 600 m.The RF values during PM2.5 pollution days were approximately 0.4 to 0.6 below a height of 800 m,reducing the transportation capacity of the wind field to only 40%to 60%.The RF and wind profile characteristics indicated that sealand breezes were highly important in the accumulation of PM2.5 air pollution in the PRD.The sea breezes may transport pollutants back inland and may result in the peak PM2.5 concentrations at night.

“三水”统筹的流域水生态环境分区管控技术与实践

基于“三水”(水生态、水环境、水资源)统筹,开展流域空间精细化管控对推进新时代流域协同保护与治理具有重要意义。按照“‘三水’问题识别—‘三水’分区划定—质量目标确定—管控单元集成”的思路,构建了流域水生态环境分区管控技术方法。以白洋淀流域为实践对象,识别出流域性突出生态环境问题;衔接现有水生态环境管理分区与政策要求,划定生态保护红线、环境质量底线及资源利用上线;明确“三水”分区域差异化生态环境管理目标与资源环境承载约束,聚类叠“三水”分区并综合划定水生态环境综合管控单元、制定结构化生态环境准入清单。

青藏高原江河流域大气环境质量研究进展

青藏高原江河流域大气环境质量与人类命运及生物地球化学循环密切相关,其质量水平与变化规律备受关注,但缺乏完整系统的研究。阐述当前大气环境质量的研究方法及其优缺点,总结青藏高原江河流域大气环境监测现状,综述青藏高原及其主要江河流域大气环境质量的研究进展,同时提出在青藏高原典型江河流域系统开展大气环境质量观测研究的建议思路,将为青藏高原重要江河流域大气环境质量研究与保护决策制定提供科学参考,服务青藏高原环境保护与生态文明高地建设。

滁州市大气环境质量底线及管控分区研究

在“三线一单”编制工作中,划定大气环境质量底线和管控分区是关键内容之一。文章以滁州市为研究对象,描述了大气环境质量底线的划定方法和目标要求,测算出滁州市各县市区大气污染物分阶段的允许排放量和达标削减比例,同时划定了7个优先保护区、24个重点管控区和8个一般管控区。针对大气环境管控区提出管控要求,并对划定成果进行初步应用探索,以期对其他各市编制“三线一单”工作提供参考。

现代工业废气排放管理与大气环境质量评估模型的构建

本研究构建了一种现代工业废气排放管理与大气环境质量评估模型。通过收集和分析废气排放数据、监测大气环境质量指标,我们开发了一个综合评估模型,能够有效评估工业废气对大气环境的影响。该模型结合了工业废气排放源的特征参数和大气污染物浓度的测量结果,提供了可行的管理决策和风险评估方法,以减少工业活动对大气环境造成的负面影响。

长三角地区制药企业对土壤环境质量的影响

以长三角地区制药企业为研究对象,采用AERMOD模型、一维非饱和溶质运移模型模拟研究了大气沉降、污水垂直入渗对土壤环境质量的影响,研究结果表明:1)在达标排放的情况下,大气沉降对土壤影响较小,其中三氯甲烷年贡献占标率为0.057%;2)污水垂直入渗会造成一定的土壤环境污染。企业应进行土壤环境隐患排查,并落实相应土壤环境保护义务。

北京市农业生态环境质量定量评价平台关键创新技术与应用成效

围绕北京市农业生态提出的“净化水源、清洁空气、改良土壤”三大主线,按照农业生态环境监测、评价、治理、再评价的闭环链条,开发了北京市农业生态环境质量定量评价平台。平台整体架构核心内容由下至上分为5层,分别是数据监测技术设备、接口、数据资源、应用平台和用户。从农业生态环境监测传感设备和符合北京市农业生态环境的质量定量评价指标及其与之对应的标准和模型两方面介绍了平台关键创新技术,并利用JAVA编程语言实现了监测设备和评价指标的网络在线联动。平台取得了较好的应用成效,累计应用项目研制的传感器和监测系统240套、农田环境(重金属)长期固定监测点155个、畜禽养殖场环境长期固定监测点30个、渔业养殖水质长期固定监测点31个,社会效益明显。最后,对未来的重点研究方向进行了讨论和展望。

城市大气环境质量改善的途径与减排思考

随着工业生产活动日趋频繁和多样,加之城市化进程的不断加快,人口数量上涨,私家车数量加大,大气环境污染问题日益严峻,对生态环境造成了极大的破坏。为此,本文从造成大气污染的主要原因入手,分析了城市大气环境质量改善中面临的主要问题,并针对当下问题提出了城市大气环境质量改善与减排的措施与建议,希望能够对相关从业人员提供参考借鉴。

大气微塑料污染的来源、影响及其控制技术研究

随着塑料制品生产和使用、城市垃圾焚烧、农业活动以及交通运输过程中大气微塑料污染的形成,其对于大气环境质量、人体健康以及生态系统产生严重威胁。针对这一问题,提出大气微塑料污染控制策略,包括从由全生命周期到全流程闭环管理实现“塑”源减量,和从基础性研究到寻找关键突破口实现“塑”战速决等。

始兴县环境空气质量现状分析及改善对策

本文利用2021—2022年始兴县境空气质量监测数据,对始兴县环境空气质量状况、大气污染物时间和空间变化规律、原因进行了分析和探讨,并提出了改善环境空气质量的对策。

大气环境影响预测中有关问题的分析探讨

本文深入探讨了大气环境影响预测中面临的主要问题,包括预测模型的局限性、数据质量与获取难题,以及环境政策与预测结果不一致等问题,并针对这些问题,提出优化预测模型、提升数据质量、应用跨学科方法、实施实时数据更新和动态预测技术,以及协调环境政策与预测结果等策略,旨在提高预测的准确性和实用性,从而为政策制定者和研究人员提供参考。

大气环境质量监测全过程质量控制措施

环境监测中要求监测数据“真、准、全”,所以大气环境质量监测必须加大质量管理力度,进行全过程质量控制。在“全过程质量控制”的理念下,为有效进行大气环境质量监测全过程质量控制,要着重进行四个环节的质量控制,包括准备环节、布点环节、采样环节及分析环节,如此才能确保大气环境质量监测数据的质量。基于此,本文对大气环境质量监测全过程质量控制措施的进行了分析,以期为相关人员提供参考。

大气污染治理中环境监测的应用

本文介绍了环境监测在大气污染治理中的应用。通过监测大气中的污染物浓度、空气质量和气象条件等方面,环境监测为政府部门提供决策依据和技术支持,促进大气污染治理工作的开展。未来,随着监测技术的不断创新和发展,环境监测将对大气污染治理产生更大的推动作用。

智能科技在环境监测与保护中的应用与展望

随着环境问题的日益突出,智能技术在环境监测领域的应用变得愈发重要。本文详细探讨了智能技术在水质和土壤环境监测中的创新实践,包括自动化采样、实时监测、数据分析及预警系统的应用。通过案例分析,展示了智能环境监测系统在提高监测效率、准确性及应对突发环境事件中的显著优势,以期为环保部门提供有力支持,进一步促进生态环境保护与可持续发展。

浅谈大气污染物排放控制与监测技术在工业领域的应用

大气污染物排放控制与监测技术在工业领域的应用,对于改善环境质量、保障公众健康以及促进可持续发展具有重要意义。本文将探讨大气污染物排放控制与监测技术在工业领域的应用,包括污染物的产生、排放控制技术和监测技术的介绍,以及这些技术在工业生产过程中的应用和效果。同时,本文还将分析这些技术面临的挑战和未来发展趋势,以期为相关领域的研究和实践提供参考和借鉴。

减小电主轴淬火体积超差的热处理新工艺

芯轴热处理质量的好坏直接决定了功能部件电主轴产品的使用性能和使用寿命。针对芯轴淬火体积变形过大的质量问题,通过采用可控气氛多用炉进行电主轴淬火,不但解决了盐浴热处理中长期困扰企业的环保问题,还解锁了可控气氛多用炉的新功能,保证了产品质量。该项工艺的试验成功,对芯轴关键功能部件热处理质量的提高具有重要意义。